Owner

Current status

Detailed Description

CUPS 1.6 was released in July 2012 and has brought several important changes

Merged Fedora's patch for color management using colord

Merged Fedora's patch for mDNS/DNS-SD support using Avahi

Removed support for CUPS Browsing and Polling

The CUPS Browsing protocol is currently the primary mechanism for CUPS-to-CUPS printer queue discovery on Linux. It works by having each CUPS server periodically broadcast UDP packets on port 631 announcing its available queues, and listening for broadcasts from other CUPS servers. CUPS Browsing protocol has no longer been meeting the requirements of current networking technologies, and in fact has had some bad effects on wireless networks due to the use of UDP broadcasts. Rather than trying to address these issues by introducing a new and incompatible update to the protocol, the existing mDNS/DNS-SD standards can serve as a ready replacement and actually has been used in CUPS for many years now.

All filters and backends not used by Mac OS X have been dropped

These filters and backends, together with the filters for the PDF printing workflow are now hosted as the cups-filters project at linuxfoundation.org.

PDF printing workflow

Currently CUPS uses PostScript as the common format for manipulating print jobs. We want to switch the standard print job transfer format from PostScript to PDF, which has many important advantages.

Additional filters for the PDF printing workflow have been added to the cups-filters project.

Benefit to Fedora

Fedora stays in sync with upstream.

Using PDF as standard print job format could lead to faster printing (as newer printers understand PDF natively) and more reliable page manipulation. PDF format allows for easier post-processing, newer features like transparency and high bit-depth color, and a simpler printing pipeline.

Red Hat, Red Hat Enterprise Linux, the Shadowman logo, and JBoss are trademarks or registered trademarks of
Red Hat, Inc. or its subsidiaries in the United States and other countries.
Linux® is the registered trademark of Linus Torvalds in the U.S. and other countries.
The Fedora Project is maintained and driven by the community and sponsored by Red Hat. This is a community
maintained site. Red Hat is not responsible for content.